Oxygen Mask Checkpoint

Oxygen Mask Checkpoint prohibits Duplicants from passing without an Oxygen Mask. Oxygen Mask Docks must be built adjacent to the checkpoint and on the opposite side the arrow points toward.

Similar to Atmo Suit Checkpoint has a Clearance setting. When a Duplicants wearing an Oxygen Mask returns, there may be no empty Oxygen Mask Dock to store the used Oxygen Mask. In this case, setting the clearance to Always Permitted will allow the Duplicant to pass. The Oxygen Mask will be placed on the floor. Setting the clearance to Vacancy will prohibit the Duplicant to pass. This setting is helpful when you have multiple Oxygen Mask Checkpoint exits.

History
Oxygen Masks used to be made and distributed by Oxygen Mask Stations, which are now replaced by a dedicated Dock and Checkpoint, and a building to construct Oxygen Masks, the Crafting Table.